Ahh, that makes sense (the undefined first PV) and explains why the 'current-controller' is not the 'default-controller' for one of the LUNs It doesn't seem to matter if it uses the other device. I think it just causes the array to do a tresspass and swap controllers. The downside being that I can't reliably balance the I/O across the two controllers. But that's not catastrophic. I'm using lvm1, which I don't beleive has an lvm.conf - correct ? thanks On Fri, Mar 05, 2004 at 09:07:41AM +0000, Joe Thornber wrote: > On Fri, Mar 05, 2004 at 11:12:38AM +1100, Franc Carter wrote: > > LVM appears to do the 'right thing for me' in that it recognises > > that the the two PVs are one (I assume via the UUID) and ignore > > the second LUN. > > Yes, LVM writes a label to the start of a PV to identify it. > > > I'd like to know if this is just good luck, or if it's behaviour > > I can rely ? > > I don't think it's defined which of the 2 devices LVM will choose, > does this matter ? If so you could always set up a filter in lvm.conf > to remove one (probably advisable anyway). > > - Joe > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ -- Franc Carter Ph:61-2-8374-5071 Fax: 61-2-8374-5070 Systems Manager, SIRCA Ltd http://www.sirca.org.au/ DISCLAIMER: The contents of this email, inclusive of attachments, may be legally privileged and confidential. Any unauthorised use of the contents is expressly prohibited. If you have received this message in error or are not the intended recipient, you should destroy the email message along with any attachment(s). Unintended recipients of this email are prohibited from retaining, disclosing, distributing or using any information contained herein. This email is also subject to copyright. No part of it should be reproduced, adapted or transmitted without the written consent of the copyright owner. _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/